Note: Please provide answer only in SAS Code (not in mathematical way).

2. One of the purposes of an investigation by Porcellini et al. was to investigate the effect of administration of intermittent interleukin (IL-2) on CD4 T cell count. The following table shows the CD4 T cell count at baseline and then again after 12 months with IL-2. Is there a significant change in CD4T cell count (at alpha=0.05)? (Please use nonparametric method if needed)